Trolley-wheel.



Httonegs 6%; Invenr.

PATENTBD OCT. 17, 1905. G LOPPI TROLLEY WHEEL.

APPLIUATION TILED JAN. 7, 1905.

m M nMW Witnesses GEORGE LOFFI, OF NORWALK, OHIO.

TROLLEY-WHEEL.

Specification of Letters Patent.

Patented Oct. 1'7, 1905.

Application filed Janua y 1905' Serial 1'0 mZZ whom, it may concern.-

Be it known that I, GEORGE LOFFI, a citizen of the United States,residing at Norwalk, in the county of Huron and State of Ohio, haveinvented a new and useful Trolley-Wheel, of which the following is aspecification.

This invention relates to the trolley-wheels employed in overheadelectric-railway systems, and has for its object to improve theconstruction and increase the efilciency and durability of devices ofthis character.

\Vith these and other objects in view, which will appear as the natureof the invention is better understood, the same consists in certainnovel features of construction, as hereinafter fully described andclaimed.

In the accompanying drawings, forming a part of this specification andin which corresponding parts are denoted by like designating characters,is illustrated the preferred form of embodiment of the invention capableof carrying the same into practical operation, it being understood thatthe invention is not necessarily limited thereto, as various changes inthe shape, proportions, and general assemblage of the parts may beresorted to Without departing from the principle of the invention orsacrificing any of its advantages.

In the drawings, Figure 1 is a longitudinal sectional elevation, andFig. 2 is a side elevation partially in section. Fig. 3 is a transversesection on the line 3 3 of Fig. 1.

The improved device comprises a tubular socket member 10 for attachmentto the trolley-pole, which is not shown, as it forms no part of thepresent invention, the upper end of the socket having spaced cars 11 12to receive a transverse pin 18, preferably of the split form, as shown.

The trolley-wheel 1 1 is formed with a cen tral hub 15, through which ahollow axle 16 projects and on which the wheel rotates.

Bearing upon the opposite ends of the hub 15 are bearings 17 18, thebearings also receiving the ends of the axle 16, to which they aresecured by pins 19 20, so that the axle is prevented from turning in thebearings.

Flexible packing-washers ofrubber, felt, leather, or the like areinterposed, as at 21 22, between the ends of the hub 15 and the innerfaces of the bearings 17 18.

The hollow axle is supplied with cottonwaste, wool, or other similarmaterial to hold the lubricating compound and is also provided with asuflicient number of apertures 23 to permit the lubricant to escapeagainst the interior of the hub 15.

Lubricant may be supplied to the interior of the axle by any well-knownor approved means.

Depending from the bearings 17 18 are arms 24 25, converging andterminating in halfsockets 26 27 for rotatively fitting into the upperend of the socket member '10.

The two parts of the portions 26 27 are connected by transversescrew-pins 28 29, and between the upper screw-pin and the transverse pin13 a spring 30 is disposed, thus exerting its force to maintain thetrolley-head? in the socket and permitting a certain degree ofyieldableness thereto, as will be obvious.

The arms 24: 25 are reduced in width adjacent to the ears 11 12, betweenwhich they p oject to permit a limited degree of rotative movementbetween the trolley head and socket, while the distance between theadjacent portions of the trolley-head and transverse pin 13 also permitsa limited amount of longitudinal movement and controlled by the spring30.

It will thus be obvious that a strong and durable trolley-wheel supportis produced which will yield sufliciently to adapt itself to variationsand irregularities in the trolleywire, and thus avoid the troublesomejumping or riding the trolley-wire so common in trolley-wheels asordinarily. constructed and mounted.

Having thus described the invention, what is claimed is In a trolley,the trolley-wheel having a lateral hub, bearings engaging the oppositeends of said hub and supporting an axle extending through the same, saidbearings having converging arms united at their extremities and formedinto a longitudinal bearing, a polesocket for receiving saidlongitudinal bearing and provided with spaced ears extending in advanceof the longitudinal socket, a pin disposed through said ears and aspring bearing terminally against said pin and the longitu- 'dinalhearing.

GEORGE LOFFI.

Witnesses:

LEONARD LOFFI, LOUIS W. WIOKHAM.

